THE RUSTS OF NOVA SCOTIA. — FRASER. o78 



I. Aecia hjpophyllous, often eii'cinate; peridiiim pale, 

 low, cylindrical, margin revolute, lacerate. Aeciospores 

 iiloboid. about 15-10/x; wall colourless. 



IT. Uredinia bypophyllous, small, oval, up to ^ mm. in 

 length, ruptured epidermis evident, ferruginous, pulverulent. 

 TJrediniospores oval or obovatc, 13-18 by 19-25/*; wall medium 

 thick, pale bro^vn, finely ccbinulate. two equatorial iicrm pores. 



TIT. Telia bypopbyllous. oblong or linear, pulvinate, 

 firm, soon naked, dark chestnut-brown or black. Teliospores 

 obovate, rounded or obtuse^ above, narrowed below, 14-22 by 

 24-35/i; w^all smooth, thin, light browm, mucJi thickened at 

 the apex. r)-12iu,; yicdicel slomlor, tinted, as lone: as the spore or 

 longer. 



Aecia on Solidarjo hieolor L. and other species of Solidago, 

 Pictou and vicinity. 



Telia and uredinia on f'arex defiexa Hornem., C. fava L., 

 C. mtumescens Tludge, 0. novae-angliae Schwein.. C trihu- 

 loides Wahlenb. and Var. reducta Bailey, C. scoparia Schkuhr., 

 Pictou and surrounding districts. 



This species also hus aecia on Asier. (See Arthur, 

 Eycologia 4:21. 1912). 



The writer by cultures (Mycologia 4:181. 1912) showiMl 

 that this rust has aecia on Solidago species. Arthur had pre- 

 viously established this counection. 



It seems ]n'obable that there is only one species of 

 Urom.yces rust on the sedges in this vicinity, that is, all belong 

 to this species. It is very common on f'arex scoparin. 



Uromyces Poae Pab. 



Nigredo Poae (Rab.) Arth. 



0. Pycnia amphigcnons. inos|-ly (•l■l)^V(lo(l on s])ols lieariug 

 aecia. hoiiev-vellow. 



